Results 11 to 20 of about 11,564,246 (232)
Remote sensing and its applications using GNSS reflected signals: advances and prospects
The Global Navigation Satellite Systems (GNSS), including the US’s GPS, China’s BDS, the European Union’s Galileo, and Russia’s GLONASS, offer real-time, all-weather, any-time, anywhere and high precision observations by transmitting L band signals ...
Shuanggen Jin+13 more
doaj +2 more sources
Design of a Compact High Isolation 4-Element Wideband Patch Antenna Array for GNSS Applications
This work presents a compact (125 mm diameter) wideband four-element antenna array with a high isolation level for Global Navigation Satellite System (GNSS) anti-jamming applications.
Muhammad Awais, A. Madni, W. Khan
semanticscholar +1 more source
A travelling-wave-fed slot spiral antenna with wide axial-ratio (AR) bandwidth and beamwidth for GNSS applications is proposed in this paper. The evolution procedure of the proposed antenna can be classified into three steps. Firstly, 12 identical spiral
Z. Zhong, Xiao Zhang
semanticscholar +1 more source
Cover crops affect soybean yield components, but not grain quality
Abstract Cover cropping is mainly used to prevent soil erosion, but the effects of individual cover crops on the subsequent soybean [Glycine max (L.) Merr.] are hardly known. Therefore, two annual field trials with 15 cover crop species and bare fallow as control were conducted in semi‐arid East Austria in 2016 and 2017.
Pia Euteneuer+6 more
wiley +1 more source
A Comprehensive Review of GNSS/INS Integration Techniques for Land and Air Vehicle Applications
Navigation systems are of interest for applications in both civilian and military vehicles. Satellite navigation systems and inertial navigation systems are the most applied in this area.
Nurlan Boguspayev+4 more
semanticscholar +1 more source
Functional traits of riparian trees in the lower Fitzroy River, Western Australia
Abstract Riparian trees are critically important for maintaining the ecological function of freshwater ecosystems. Globally, anthropogenic changes to water regimes are impacting the health and distribution of riparian trees. Understanding the physiological constraints on the distribution of riparian tree species in relation to the water regime is ...
Caroline A. Canham+6 more
wiley +1 more source
Topographic thresholds for gully head formation in badlands
Gully topographic threshold model was extended to badlands, on the basis of data collected in the Mediterranean environment in Italy and Spain, characterized by diversified climatic, lithological, geological and anthropogenic settings. Criteria for the attribution of curve number values has been more objectively defined in order to reduce arbitrariness
Mauro Rossi+4 more
wiley +1 more source
Abstract Geomorphology generally aims to describe and investigate the processes that lead to the formation of landscapes, while geochronology is needed to detect their timing and duration. Due to restrictions on exporting geological samples from Egypt, modern geoscientific studies in the Nile Delta lack the possibility of dating the investigated ...
Martin Seeliger+5 more
wiley +1 more source
Abstract Offshore wind farms will play a vital role in the global ambition of net zero energy generation. Future offshore wind farms will be larger and further from the coast, meaning that traditional human‐based operations and maintenance approaches will become infeasible due to safety, cost, and skills shortages.
Zhengyi Jiang+7 more
wiley +1 more source
A Novel UAV-Assisted Positioning System for GNSS-Denied Environments
Global Navigation Satellite Systems (GNSS) are extensively used for location-based services, civil and military applications, precise time reference, atmosphere sensing, and other applications. In surveying and mapping applications, GNSS provides precise
Panagiotis Partsinevelos+3 more
doaj +1 more source